Found it on ELFA, a Scandinavian electronics shop, so you could probably find something closer to home APEM is an international brand, with a big US department, so you should find something suitable here: http://www.apem.com/index.html. This one is from their anti-vandal series

Bulgin is another manufacturer of that kind of switches, but it's British, so I don't know if they have any US retailers.